This extremely popular set starts where the State Quarter Set ends. In 2009, the District of Columbia and the U.S. Territories got their commemorative quarters. Then the following year, the 12 year America the Beautiful series began, paying tribute to National landmarks and parks from across the nation. And there is no better way to enjoy these issues than with the Proof strikings in Silver. Fortunately, none of these is rare even up to PR-70, so this is a very completable set that will be a great heirloom for future generations.